Jermaine

Jermaine is Jake's younger half-brother, the adoptive older brother of Finn, and the son of Joshua and Margaret. He is introduced in "Crystals Have Power" in one of Jake's flashbacks where they were both children. Jake hurt Jermaine in the flashback, which seems to have left an impact on Jake causing him to avoid violence as a way of solving problems. After Jake hits his head and apparently begins a spiritual communication later in the episode, Jermaine tells him that he understands Jake did not mean to hurt him...

Species

Dog

Debut

Crystals Have Power